Home / 260,588,354.08-390,882,278.20-66,499,770.64

Finding the Fourth Proportional to 260,588,354.08, 390,882,278.20 and 66,499,770.64

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Solution

The fourth proportional to 260,588,354.08, 390,882,278.20 and 66,499,770.64 is: 99,749,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,588,354.08 : 390,882,278.20 = 66,499,770.64 : x
  2. Step 2: Convert to fraction form
    260,588,354.08/390,882,278.20 = 66,499,770.64/x
  3. Step 3: Cross multiply
    260,588,354.08x = 390,882,278.20 × 66,499,770.64
  4. Step 4: Simplify right side
    260,588,354.08x = 25,993,581,847,540,672
  5. Step 5: Solve for x
    x = 25,993,581,847,540,672/260,588,354.08
  6. Step 6: Final answer
    x = 99,749,591.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.